triple bond


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triple bond

n.
A covalent bond in which three electron pairs are shared between two atoms.

triple bond

n
(Chemistry) a type of chemical bond consisting of three distinct covalent bonds linking two atoms in a molecule

tri′ple bond′



n. Chem.
a chemical linkage consisting of three covalent bonds between two atoms of a molecule, represented in chemical formulas by three lines or six dots, as CH≡CH or CH⋮⋮CH.
[1885–90]
References in periodicals archive ?
Atmospheric nitrogen consists of two nitrogen molecules, linked via a strong triple bond that can only be broken by an extremely energetic event namely, lightning.
An Example of Nucleophilic Reaction on Triple Bond, J Chem Soc Pakistan, 34, (2012).
The geometrical and mechanical parameters of the three bonding types used in the analysis have the following values [8]: d = 1.284 [Angstrom] for aromatic and single bonds and d = 1.954 [Angstrom] for a triple bond; A = 1.0 [[Angstrom].sup.2] for aromatic and single bonds and 3.0 [[Angstrom].sup.2] for a triple bond; I = 0.07958 [[Angstrom].sup.4] for aromatic and single bonds and 0.7162 [[Angstrom].sup.4] for a triple bond; and E = 167.616 nN/[[Angstrom].sup.2] for an aromatic bond, E = 166.964 nN/[[Angstrom].sup.2] for a single bond, and E = 25.852 nN/[[Angstrom].sup.2] for a triple bond.
Thus, during the initial analysis of the structure of radicals it is possible to identify a certain relationship between the efficiency of incorporating nucleotides with modified bases and characteristics of the modifications, such as the length of a strand of a radical and position of triple bond. In that case, the position of triple bonds could play a key role in the process of recognition of nucleotides by DNA polymerases.
In the new work, carbon monoxide conspires with a metal complex to cleave one of nature's strongest chemical bonds: the triple bond that connects two nitrogen atoms.
Nitrogen gas ([N.sub.2]) makes up 78 percent of our atmosphere, but most organisms cannot use this source of nitrogen to grow, because the nitrogen atoms are held together by a triple bond so strong that it requires extreme temperatures and pressures to break.
Most organisms can't break the powerful triple bond of the [N.sub.2] molecule's two atoms.
As such, its infrared spectrum is essentially that of trans-polybutadiene with a sharp peak at 2,238 [cm.sup.-1] from the nitrile triple bond stretch.
Identification of non-heme diiron proteins that catalyze triple bond and epoxy group formation.
Tan (9) investigated the cure of 2kPETU and 3kPETU at temperatures ranging from 300[degrees]C to 345[degrees]C and reports that the disappearance of the triple bond appeared to follow first-order reaction kinetics for the initial 80 minutes of cure.